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Problem 3.27 At , = 484 s after midnight, a spacecraft of mass 1200 kg is located at position <3 x 105, 4 x 105,-3 x 10, m, and at that time an asteroid whose mass is 7 x 10s kg is located at position <9 x 105, -3 x 105, -17 x 105> m. There are no other objects nearby (a) Calculate the (vector) force acting on the spacecraft. Fnet = < > N (b) At t 484 s the spacecrafts momentum was p i, and at the later time t = 491 s its momentum was pf. Calculate the (vector) change of momentum pf-Pi > kg.m/s

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(68x105 n 13 -0.93

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